Bottle-capping machine



Jan. 8, 1924. I W; W. BURESCH BOTTLE CAPPING MACHINE- Filed Aug. 18. 1922 Patented Jan. 8, 1924.

UNITED STATES PATENT OFFICE.

WILLIAM W. BURESJCH, 01E: BALTIMORE, MARYLAND.

BOTTLE-CAPPING MACHINE.

Application filed August 18, 1922. Serial -No. 582,690. V

T 0 all whom it may 007L06rn.

Be it knownv that I, WILLIAM 1V. BU- RESCH, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in-Bottle-Capping Machines, of which the following is a specification.

This invention relates to a simple and effective form of capping machine for applying crimped metal caps to bottles. In carrying out the inventlon, I provide a stand or supporting table, a reciprocating frame comprising parallel guide rods which extend through the bed of the table and are connected at their ends by cross-heads, and this frame is movable in the upward direction by springs and in the downward direction by a treadle. The rods are movable in long guide tubes which are arranged in a block below the table top. The upper crosshead is composed of a metal plate having a central opening, the internal wall of which tapers upwardly. In order to secure a cap to a bottle, the bottle, with the cap placed over its mouth, is set upon the table in line with the opening and upon the depression of the frame by the treadle the opening in the upper cross-head is brought clownwardly over the cap and the side walls of the opening press the flange of the cap around the bead on the bottle mouth. Occasionally, after a cap has been applied to a bottle, the cap will remain frictionally held by the walls of the opening in the cross-head and the cap and bottle will be lifted up by the springs when the pedal is released. It then becomes necessary to force the cap downwardly out of the 0 ening, and for this purpose I provide a p unger which is supported by a strong spiral spring, the latter mounted upon the upper cross-head surrounding the opening. By

striking this plunger with the hand the,

cap will be released from the opening in the cross-head. The plunger is preferably made of wood so as not to injure the cap or bottle mouth, and it is removably arranged within the coil of the spring.

In the accompanying drawing,

Fig. 1 is a front elevation of the bottle capping machine;

Fig. 2 is a side elevation of the same, one of the guide rods being broken away; and

Fig. 3 is a section on the line 33 of Fig. 2.

Referring to the drawing, 0 represents a supporting table comprising a-base 1, uprights 2, and a top 3. A wooden block dis bolted to the uprights immediately beneath the table top and in this block are arranged guide tubes 5, for a pair of guide rods 6 which constitute parts of a vertically reciprocating frame b. Each guide tube as shown has head 5* at its upper end which fits into a countersunk opening in the block 4, and the tube is extended down below the block and threaded exteriorly. A clamping nut 5, threaded. ontothe tube, bears against the lower side of the block and locks the tube firmly to the block. The table top 3, on which the bottles are supported while the caps are being applied, is of wood and extends over the upper ends of the metal tubes, preventing the bottles from striking or being forced against thetubes in placing or removing the bottles or in applying the caps.

The frame 2') comprises the guide rods 6, which move in the guide tubes and extend through openings in the table top, and cross-heads 7 and 8, connecting the lower and upper ends of said rods, respectively. The frame is normally held in the upper position shown in the drawing by springs 9, connected to the lower side of the block 4 and to the lower cross-head 7 A treadle 10, hinged at 11 to the base, is connected to the cross-head 7 by a link 12 so that upon depressing the treadle the sliding frame I; will be moved downward, against the action of the springs 9.

The upper cross-head 8uis in the form of a flat plate or bar having a central circular opening 13, the inner walls ofwhich taper upwardly and are adapted to bear upon the flanged portion of the cap to force the latter over and around the bead on the bottle when the frame is depressed, as shown in Fig. 3. I

By placing a cap on the bottle and locating the bottle directly beneath the opening, as shown in Figs. 1 and 2, and then pressing the frame downwardly by the operation of the treadle, the cap will be pressed onto the bottle. When the treadle is released, the frame moves upward and the capped bottle may then be removed from the table.

It occasionally happens thatin pressing a cap onto a bottle, the cap will become wedged and will stick in the opening in the upper-cross-head, and when the treadle is released the cap and bottle will be lifted from the table. It then becomes necessary to force the cap and bottle downward so as to release them from the erosshead. For this purpose, I provide a strong spiral spring 14 which is secured to the top of the crosshead 8 and extends above the samepconcentrio with the opening in the cross-head, and I also provide a plunger 15, preferably of wood, which can be inserted through the spring intoenga'gement with the cap on the bottle. This plunger has ahead or knob 15 which overhangs the spring. By striking the knob with the hand a short sharp blow will be given to the'cap and bottle which :1 willdislodge the cap without injuring either the cap or the bottle. The strong spring prevents the plunger from following down for any considerable distance when struck and returns the plunger to upper position after the bottle and cap havebeen dislodged.

The plunger may be left permanently in positiom supported by the spring, or it may be removed and returned forusewhenoccasion requires. The long -guide tubes insure straight and. parallel movement of the guide bars of the sliding irame.

, /Vhat I claim is:

In a bottle capping machine, a supporting crimped bottle cap when the cap is pressed 1-- into the opening, a helical spring on said. upper cross-head concentrlc vith the open: mg and pro ecting-above the opening, a

plunger adapted to enter the opening and having a knob ada'ptedto reston said sprin and means for reciprocating the frame.

In testimony whereof I hereunto affix my signature. V .i r.

WI'LLIAM W. BURESCH. 

